An IAB Tech Lab standard that lets app publishers declare which ad networks are authorized to sell their inventory.

Where do I put the app-ads.txt file?

At the root of the developer website listed in your App Store / Google Play page, e.g. https://studio.com/app-ads.txt.

What is a Certification Authority ID?

An optional TAG-ID of the ad system, the 4th field of an app-ads.txt record.

civilization.civilizationriseofempire.com app-ads.txt check

civilization.civilizationriseofempire.com achieves the best ad optimization: its app-ads.txt has no errors and matches what its 2 ad networks expect (100% of 2 lines).

Checked 21 Oct 2026. 3 lines, 3 unique records, 0 duplicates, 0 invalid lines, 2 ad networks detected.

Ad networks in civilization.civilizationriseofempire.com/app-ads.txt

Google AdMob — account pub-2219211328867148: 1 line in the file
Meta Audience Network — accounts 347837122808502, 2707775712827361: 2 lines in the file

Corrected file: civilization.civilizationriseofempire.com app-ads.txt (fixed).

FAQ

Does civilization.civilizationriseofempire.com have an app-ads.txt?

Yes — https://civilization.civilizationriseofempire.com/app-ads.txt has 3 lines (checked 21 Oct 2026).

Which ad networks does civilization.civilizationriseofempire.com work with?

Its app-ads.txt lists Google AdMob, Meta Audience Network.

Is the app-ads.txt of civilization.civilizationriseofempire.com correct?